| 2025年 | 2026年 | 平年値 | |
| 2-14 | 15.5 | 15.8 | 15 |
| 2-15 | 15.6 | 16.3 | 15.5 |
| 2-16 | 16 | 16.4 | 15.1 |
| 2-17 | 15.6 | 15.9 | 15.3 |
| 2-18 | 15.5 | 15.7 | 15 |
| 2-19 | 15.3 | 15.7 | 14.9 |
| 2-20 | 15.3 | 16.8 | 14.7 |
| 2-21 | 15.2 | 16.9 | 14.5 |
| 2-22 | 14.9 | 16.1 | 14.9 |
| 2-23 | 15 | 16.1 | 15.3 |
| 2-24 | 14.9 | 16.4 | 14.7 |
| 2-25 | 14.7 | 16.6 | 14.8 |
| 2-26 | 15.1 | 16.5 | 14.9 |
| 2-27 | 15.3 | 17.2 | 14.6 |
| 2-28 | 15.6 | --- | 15.1 |